Chrononauts - "Carl Sagan's Joint" - Promo Card - Looney Labs

Carl Sagan's JointThis special Artifact works in either type of Chrononauts deck. 

It debuted as a promo card for the Summer Festivals of 2004.

The text on the card says, "At any time during your normal turn, if you have this Artifact in play, you may (as an extra action) swap it with any Artifact or Gadget another player has on the table."

This is not a stand-alone game. A Chrononauts core set is required to play.